the chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.

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  • hydrogénation — [ idrɔʒenasjɔ̃ ] n. f. • 1814; de hydrogéner ♦ Chim., techn. Action d hydrogéner; résultat de cette action. Hydrogénation du charbon : procédé utilisé dans la fabrication d huiles minérales artificielles. ● hydrogénation nom féminin Fixation d… …   Encyclopédie Universelle

  • Hydrogenation — Hy dro*gen*a tion, n. (Chem.) The act of combining with hydrogen, or the state of being so combined. [1913 Webster] …   The Collaborative International Dictionary of English

  • Hydrogénation — Exemple de réaction d hydrogénation: addition de dihydrogène sur l acide maléique pour le transformer en acide succinique, réaction réalisée sous pression (3 atm), catalysée par le palladium[1]. L hydrogénation est une réaction chimique qui… …   Wikipédia en Français

  • Hydrogenation — |date=1996|location=Washington, D.C.|pages=429|id=ISBN 0 8412 3344 6] Because of the importance of hydrogen, many related reactions have been developed for its use. Most hydrogenations use gaseous hydrogen (H2), but some involve the alternative… …   Wikipedia

  • hydrogenation — Chemical reaction between molecular hydrogen (H2) and another element or a compound, usually in the presence of a catalyst. It may involve adding hydrogen at the sites of double or triple bonds (see bonding) to make them single bonds (i.e., to… …   Universalium

  • hydrogenation — noun a chemical process that adds hydrogen atoms to an unsaturated oil food producers use hydrogenation to keep fat from becoming rancid • Derivationally related forms: ↑hydrogenate • Hypernyms: ↑chemical process, ↑chemical change, ↑chemical… …   Useful english dictionary

  • hydrogenation — riebalų hidrinimas statusas Aprobuotas sritis pašarai apibrėžtis Aliejaus ir taukų neprisotintųjų glicerolių pakeitimas prisotintaisiais gliceroliais. atitikmenys: angl. hydrogenation vok. Fetthärtung rus. гидрирование; гидрогенизация pranc.… …   Lithuanian dictionary (lietuvių žodynas)

  • hydrogenation — hidrinimas statusas T sritis chemija apibrėžtis Vandenilio prijungimas. atitikmenys: angl. hydrogenation rus. гидрирование; гидрогенизация …   Chemijos terminų aiškinamasis žodynas

  • hydrogenation — noun see hydrogenate …   New Collegiate Dictionary

  • hydrogenation — Addition of hydrogen to a compound, especially to an unsaturated fat or fatty acid; thus, soft fats or oils are solidified or “hardened.” …   Medical dictionary

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